Ogyia producta Hall and Whitfield, 1877, p. 244

Foster, John R., 2022, Continuous character variation within the Glossopleura-Anoria-Sonoraspis plexus: Dolichometopid trilobites from the Cadiz Formation (Cambrian: Miaolingian, Wuliuan), California, Palaeontologia Electronica (a 18) 25 (2), pp. 1-25 : 18

Ogyia producta Hall and Whitfield, 1877, p. 244 , pl.

2, figs. 31–34.

Bathyuriscus productus Walcott, 1886, p. 217 , pl.

30, fig. 1f.

Dolichometopus productus (part) Walcott, 1916a,

p. 369–372, pl. 53, figs. 2, 2a–e, 3, 3a-b.

Dolichometopus productus Resser, 1928, p. 10 , pl.

3, fig. 9.

Glossopleura producta Resser, 1935, p. 31 –32.

Glossopleura producta Palmer, 1954 , pl. 13, figs.

7, 9–13.

Type specimens. USNM 15456 , USNM 15459 , cotypes .

Occurrence. Ophir Formation, Oquirrh Mountains, Utah; Glossopleura Assemblage Biozone, Interval Biozone (Morgan, 2021) undesignated, (Wuliuan, Miaolingian).

Material examined. USNM 15459, USNM 123356, FHPR 16738, FHPR 16739, FHPR 11285, DMNH EPI.42919.

Remarks. Much previous material from the Cadiz Formation , once identified as Dolichometopus productus , would at later stages have been considered Glossopleura producta ; however, Palmer (1954) and Sundberg (2005) restricted G. producta to the type material from the Ophir Formation of Utah only. Most Cadiz specimens previously assigned to Dolichometopus (G.) producta are more likely G. mohavensis .